2427497 - H27 ELECTRIC STEERING NOISY WHEN USED WITH VEHICLE STATIONARY

The Customer reports noise from the electric steering system when the vehicle is STATIONARY

		Results of the tests
1	CHECK ON TYPE OF NOISE	All OK	Problems met	Operation
	Check the type of noise reported	End of diagnosis	Electric type noise (buzzing) (with the system activated)	Continue to Step 2
			Noise simiar to scraping plastic (with the system not activated)	Continue to Step 3
			Noise similar to clicking (with the system activated)	Continue to Step 5
			Noise similar to reverse rotation of the steering wheel (with the system activated)	Continue to Step 7
			Noise similar to high pitched creaking (with the system activated)	Check the condition of the EPS electric motor rear bearing. If the bearing is intact, replace the EPS system.
			Noise similar to a series of bangs during rotation - around 22 distinct bangs (with the system activated)	Replace the EPS system.
2	CHECK ON INTENSITY OF NOISE	All OK	Problems met	Operation
	Check the extent of the noise	End of diagnosis	The noise is slight. It cannot be heard on the passenger side.	Do not intervene: Noise that is not very loud is normal for an EPS system
			The noise is loud	Replace EPS system electric motor.
3	INTERFERENCE CHECK	All OK	Problems met	Operation
	Check for any interference between the steering column and the surrounding plastic parts (with the system not activated)	Continue to Step 4	The steering wheel is in contact with the upper and/or lower cover	Check that the steering column cover assembly is correct
			The steering wheel is not in contact with the upper and/or lower cover	Check that the steering column switch unit and steering wheel cover are correctly fitted
4	INTERFERENCE CHECK	All OK	Problems met	Operation
	Check for any interference between the lower steering box connecting fork and the floor covering (with the system not activated)	End of diagnosis	The fork is rubbing againt the carpet	Do not adjust the EPS system. Adjust the floor covering
			The fork and the floor covering are not rubbing against one another	Replace the EPS system
5	CHECK ON NOISE FROM OTHER COMPONENTS	All OK	Problems met	Operation
	Check whether the noise persists even without the driver's Air Bag	Continue to Step 6	The noise does not persist	Do not adjust the EPS system, but the defective component
6	CHECK ON NOISE FROM OTHER COMPONENTS	All OK	Problems met	Operation
	Check whether the noise persists even without the steering column switch unit	End of diagnosis	The noise disappears after the steering column switch unit has been removed	Do not adjust the EPS system, but the defective component
7	FORK TIGHTENING CHECK	All OK	Problems met	Operation
	Check that the lower fork nut is correctly tightened on the steering box pinion	Continue to Step 8	Tightening not correct	Restore the correct tightening
8	STEERING WHEEL OSCILLATION CHECK	All OK	Problems met	Operation
	Check the type of steering wheel oscillation	End of diagnosis	The fault occurs when the steering wheel oscillation is slight	Replace the EPS system insulator (flexible coupling)
			The fault occurs when the steering wheel movements are sudden, similar to emergency manoeuvres	Replace the EPS system intermediate shaft
9	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Replace the EPS system.